CVE-2026-18216
Backup Migration < 2.1.7 - Admin+ Privilege Escalation via Post-Restore Auto-Login
- State
- Published
- Severity
- 6.5 Medium
- Published
- Aug 15, 2026
- Updated
- Aug 17, 2026
- Reserved
- Jul 29, 2026
Description
The Backup Migration WordPress plugin before 2.1.7 does not properly restrict a post-restore automatic login mechanism, allowing a user who administers one site of a multisite network to obtain a long-lived authenticated session as an administrator of another site in the same network, without credentials and bypassing two-factor authentication.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N | CISA-ADP |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
Backup MigrationUnknown |
|
References
- https://wpscan.com/vulnerability/f12530c5-4069-42c2-9f1c-b00fc62aa387/exploitvdb-entrytechnical-description
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